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A Slot-Coupled Broadband Filter Antenna

A filter antenna and slot technology, applied in the field of radio frequency microwave communication, can solve the problem of low radiation gain, and achieve the effect of improving gain, avoiding loss, and widening antenna bandwidth

Active Publication Date: 2021-04-20
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the defects of the prior art, the purpose of the present invention is to provide a slot-coupled filter antenna, aiming to solve the problem of low radiation gain in the existing filter antenna due to the direct introduction of the filter structure

Method used

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  • A Slot-Coupled Broadband Filter Antenna
  • A Slot-Coupled Broadband Filter Antenna
  • A Slot-Coupled Broadband Filter Antenna

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] Such as figure 1 with figure 2 As shown, the present invention provides a slot-coupled filter antenna, including a feed network layer 6, a first dielectric substrate 1, a ground layer 4, a second dielectric substrate 2, and a rectangular parasitic patch 5;

[0028] The first dielectric substrate 1 is located directly below the second dielectric substrate 2, and an air layer 3 is reserved between them; the first dielectric substrate 1 is used to fix the feed network layer 6 and the ground layer 4; the second dielectric substrate 1 The second dielectric substrate 2 is used to fix the rectan...

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Abstract

The invention discloses a slot-coupled filter antenna, which comprises a feed network layer, a first dielectric substrate, a ground layer, a second dielectric substrate, and a rectangular parasitic patch; the first dielectric substrate is located directly below the second dielectric substrate , and an air layer is reserved between the two; the first dielectric substrate is used to fix the feed network layer and the ground layer; the second dielectric substrate is used to fix the rectangular parasitic patch; the feed network layer is located on the first The bottom layer of the dielectric substrate is used to transmit signal energy; the ground layer is located on the top layer of the first dielectric substrate, and a gap is arranged on it, which is used to couple the energy of the feed network layer to the top rectangular parasitic patch; the The rectangular parasitic patch is located on the top layer of the second dielectric substrate, and serves as the radiation unit of the antenna for radiating energy to free space. On the premise of not directly introducing a filtering structure, the invention realizes the broadband filtering characteristics and high-gain radiation characteristics of the antenna.

Description

technical field [0001] The invention belongs to the technical field of radio frequency microwave communication, and more specifically relates to a slot-coupled filter antenna. Background technique [0002] With the rapid development of wireless communication, there are more and more communication frequency bands and communication standards, which have higher and higher requirements for the RF front-end, especially the miniaturization of the RF front-end. The two most important components in the RF front-end system are the filter and the antenna. However, due to the limitation of the antenna's own radiation characteristics, the radiation performance will be affected when the antenna is miniaturized. Therefore, the miniaturization of the base station antenna itself is difficult to implement, and the miniaturization of the system can only be realized through the fusion design with the filter, so the research of the filter antenna is necessary. [0003] In recent years, there a...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/48H01Q1/50
CPCH01Q1/36H01Q1/48H01Q1/50
Inventor 毕晓君王梓睿
Owner HUAZHONG UNIV OF SCI & TECH
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